What are Quad-Core Cpu?

Toggle sidebar Toggle sidebar
L

larasatiyumiko

Reputable
Jun 16, 2014
1
0
4,510
Are quad-core cpus like 4 cpus. For example does a quad-core cpu with 2Ghz work like an 8Ghz cpu?
cn8OF4

Note : is it 4 cpus each with 2ghz but not like 8ghz in total?
Thanks
 
Solution
Rationale


Well, yes. There aren't many games that use more than 4 cores. Most of the time Intel is a better choice.
You're correct about APUs.
Sort by date Sort by votes
ksham

ksham

Splendid
Mar 29, 2013
8,398
1
29,960
A quad-core CPU means that the CPU has four cores, each core capable of performing a single task. So in other words, it can perform four simultaneous tasks at once. Working on four tasks in parallel is much faster than working on the same amount of tasks one at a time.

That doesn't mean that the clock speed is addictive.
 
Upvote 0 Downvote
snowctrl

snowctrl

Distinguished
Sep 10, 2013
2,059
0
20,460
A quad core CPU is literally 4 identical processors, or Cores, working in unison, built into a single chip.

The chip as a whole will run at 2Ghz in yo example' which would b the same as 4 chips each containing a single Core, if all the Cores were the same, and if they all had equal access t RAM etc.

In practice each individual core is more made more powerful with each new generation of chips, so it tends t be better t buy a more recent chip.
 
Upvote 0 Downvote
ksham

ksham

Splendid
Mar 29, 2013
8,398
1
29,960
To put into perspective, 4 physical cores means having 4 people, each doing a single task. But in the case of hyper-threading (HT) for an i3 (dual-core), it has 2 physical cores and 2 logical cores with HT. In that scenario, there are 2 people, but each one is doing TWO tasks instead of one.
 
Upvote 0 Downvote
Rationale

Rationale

Admirable
Mar 21, 2014
3,025
0
7,960


i3s do have hyper threading.

And to the original question, no. It doesn't work like an "8Ghz" CPU. Each core is separate. Things have to be coded specifically to make use of each additional core in order for the extra cores to help.

For example, in most games, AMD 8 core CPUs leave 4 cores entirely unused.
 
Upvote 0 Downvote
Rationale

Rationale

Admirable
Mar 21, 2014
3,025
0
7,960


Battlefield 4 can actually use 8.
Crysis 3 can use 8.
Planetside 2 I heard could use 6.

There aren't many games that use more than 4. And there are still plenty that use 2 or 3.
I probably missed a couple games though.
 
Upvote 0 Downvote
Rationale

Rationale

Admirable
Mar 21, 2014
3,025
0
7,960


There's no reason to go for more than 6 cores for games, the only effective purpose is for professional rendering and bragging rights.

Dual core was the standard in games for many years. Quad core just became the standard like a year ago, around the release of the PS4 and X1, and even now some games are releasing that only use 2 cores. In the 5 years it takes for 8 cores to be utilized in many games, all current 8 core CPUs will be too slow per core to run much anyway.
 
Upvote 0 Downvote
Rationale

Rationale

Admirable
Mar 21, 2014
3,025
0
7,960


The thing where AMD has more price/performance is mostly a myth. You pretty much get what you pay for in the $50-$350 range. It's just below $50 and above $350 that the price/performance ratio gets torn apart and scattered for both companies.

It takes a Pentium G3220 to match an Athlon 750K or APU.
It takes an i3-4130 to match an FX-4300 or FX-6300.
It takes an i3-4330 to match an FX-6350.
It takes an i5-4430 to match an FX-8350.
It takes an i5-4670 to match an FX-9370.
It takes an i7-4770 to match an FX-9590.

Obviously they trade off somewhat, with AMD CPUs having the price/performance edge in heavily multithreaded 6-8 core games like BF4, and Intel CPUs having the price/performance edge in games focused more on 2-4 cores like Skyrim or Black Flag. In BF4, an i5-4670 performs more like the FX-8350, giving the edge to AMD. In Skyrim or Black Flag, the i3-4330 performs like the FX-8350, giving the edge to Intel.

Of course, that leaves Intel's massive efficiency improvements unanswered, which doesn't bode well for AMD. A 50w Intel CPU can perform the same as a 125w AMD CPU, and that power difference allows Intel builds to have less expensive power supplies, quieter stock coolers, lower energy bills, a wider audience in countries that experience brownouts, and a cleaner environmental footprint.
 
Upvote 0 Downvote
woworwow

woworwow

Honorable
Jan 18, 2014
830
0
11,160
Most of the times intel processor is cheaper.
The only reason i can think of for buying amd apu is in case my gpu fails, i can still play my games.
I think AMD's APUs is aimed at the people who wants to build HTPCs or schools and offices
 
Upvote 1 Downvote
Rationale

Rationale

Admirable
Mar 21, 2014
3,025
0
7,960


Well, yes. There aren't many games that use more than 4 cores. Most of the time Intel is a better choice.
You're correct about APUs.
 
Upvote 0 Downvote
Solution
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom